Ethod of cooling refrigerators



(No Model.) 7

T. SOHEPPLER. METHOD OF GOOLING REFRIGERATORS.

No. 523,412. Patented July 24, 1894.

- UNITED STATES PATENT OFF CE.

' THEODORE SCHEFFLER, F PATER-SON, AssIeNORoE ONE-HALF 'ro FREDERICK A. SOHEFFLER, OF'PASSAIO, NEW JERsEY,

)VIETHOD OF COOLING REFRIGERATORS.

SPECIFICATION forming part of Letters Patent No. 523,412, dated July 24, 1894. Application filed September 19, 1893. Serial No. 485.918. (N0 specimens.)

To all whom it may-concern:

Be it known that I, THEODORE SOHEFFLER, acitizen of the United States, residing at Paterson, in the county of Passaic and State of New Jersey, have invented a new Method of Cooling Refrigerators, together with the Necessary Apparatus and Machinery, of which the following is a specification;

The object of my invention, is to cool a refrigerator in a certain time, by the continuous working of the apparatus and machine and to produce in the same time, a certain'quantity of ice, which gives off its cold to the contents of the refrigerator, when the machine is not in operation. This object is attained by the apparatus and mechanism illustrated in the accompanying drawings, in which- Figure l is a vertical section of the apparatus; Fig. 2, a plan, and Fig. 3, an end View. Similar letters refer to similar parts through the several views. 7 I p A A represent a usual refrigerator box with shelves t and to. It contains at the top a reservoir of sheet metal B B, which latter ends at the upper sheet, into a conical or pyramidical shape, at the apex of which a pipe n, is attached, leading to the suction side of a suitable pump D. In the above named cone or pyramid, are perforated sheets a and d attached, to prevent the fluid a from rising into pipe g from the water-to the gage, the cooks h and 41 are kept open'during the working of the pump.

7c is a threeway cock leading from the bottom of the gage to a pipe Z and a pipe m,

which latter communicates with thebottom of a water reservoir 0. I v

A pipe 0 leads from the compression side of the pump to the condenser E, and the pipep out of the condenser to the bottom of fluid a.

q is a'feedwater pipe to condenser, 0 over. flow water pipe from condenser, and o isa three way cock connecting pipe 0 at w to the atmosphere or at y to condenser. I

rapid evaporation thereof.

through pipe Z, the cock is being in position to communicate with e and pipef, the cock h open, iclosed and 1) open to y for condenser.

The apparatus is now ready for continuous operation, the temperature will be reduced gradually in the box F by the'evaporation of the volatile fluid under a partial vacuum and the water will become colder and freeze after a certain time, when the working of the pump may be stopped, and the ice. in B B will do the cooling. The machine will be running for instance in day time and be'stopped over night, when the accumulated ice will come in use. Pumps and condensers are used in ice machines and cooling apparatus, and I do not claim any special kind of either one, but have simply shown the combination of them, with my cooling apparatus, but i Whatl claim as ,my invention, and desire to secure by Letters .Patent, is

1. The method ofcooling or freezinga liquid, consisting in placing it in contact with .a volatile liquid insoluble therein, and subjecting the latter to evaporation.

2. The method of cooling or freezinga liquid, consisting in floating directly thereon a volatile liquid of lighter specific gravity and insoluble therein, and then reducing thepressure from above the latter so as to cause 3. The method of cooling or free zinga liquid, consisting in floating idirectly thereon a lighter and volatile liquid insoluble therein,

and then, while confining both liquids in a suitable chamber, reducing the pressure above the liquids. t

THEODORE SOHEFFLER' Witnesses: I

EDWARD LEsLIE, BENJAMIN UAR Y. 

